practicing medicine without a license. a year after being caught on surveillance roaming a hospital acting like a doctor how police say he tricked his patients and his family. our reporter goes one on one with the teenager. >> are you in big trouble? >> what prompted him to storm out of the interview. they call him the king of snapchat. dj ka lid is the hip-hop producer behind some e the decade's biggest anthems like "a i do is win." >> they don't want you to say no wrong -- >> rubs shoulders with kim kardashian and justin bieber. but it's his creative use of social media that has sent his fame through the roof. we're in miami along for a wild ride. and the donald versus the pope. the leader of the catholic church speaking out against trump, questioning his christianity. >> for a religiousus leader t t

>> is this finally the feud that damages trump's candidacy? or could it a@tually help him? but first the "nightline 5." >> the boldny saup rogue with intuitive all-wheel drive. because winter needs a hero. now get a $189 per month lease on the 2016 nissan rogue. nissan, innovation that excites.

seconds. good evening and tonight an

such tenacity, it boggles the mind. it involves an 18-year-old baby-faced kid accused of mask raiding as a doctor. police s treating patients out of his own clipping. and wait until you see what happened when he went one on one with abc's matt gutman. >> reporter: he has a lab coat and stethoscope. but police say this baby-faced physician doesn't have an m.d. >> are you a fraud? because it seems like everything you're saying to me is evasive. >> i don't appreciate your tone. >> reporter: to understand why this g g is storming out of our interview, you have too back about 24 hours. >> malachi, they say you've been practicing medicine without a license. >> reporter: malachi love johnson or dr. love as he refers to himself was marched out of his west palm beach clinic in handcuffs. >> how do you feel now, all the people that believed in you, that thought that you knew what you were talking about? >> reporter: one other thing, this self-proclaimed doctor is only 18. >> i'm hurt because of the

like i said, this is not the first time where i've been accused and i will pursue this. >> reporter: only last year malachi, then just 17 years d, was detained at this local hospital in west palm beach. the police report says he was walking around the halls in a doctor's coat. >> i believe it sd department of anesthesiology on it. >> reporter: witnesses reporting halls for a month. everywhere. like i'm some insane maniac. >> reporter: last month you're affiliate wpb caughtt up with him. >> i didn't snatch up a baby, i didn't do any ofthat. >> reporter: police snapped this picture of the lab coat in his car.% on one lapel, the title "asthesiologist." on the other, his name. the hospital did not press charges, claiming in a statement the individual never had contact with any hospital patients and did not gain access to any patient care areas. none of that deterred love robinson. just this past october, a second incident.

issuing a cease and desisttrder claiming love robinson was leading the public to believe he was a licensed medical doctor while serving as a therapist in another florida rehab facility, but for love robinson, is the third time the charm? the 18-year-old indeed now facing serious accusations from police. seven of them. including grand theft and fraud for allegedly practicing medicine without a license. >> so are you a doctor of anything? anything at all? >> i do currently hold a ph.d.. in what i don't feel comfortable disclosing because that is not the issue here. the issue that i face now is accusations. >> reporter:ftereing released from jail on a $21,000 bail, malachi sat down with abc news. >> do you even have a high school diploma? >> yes, i do possess a high school diploma. >> reporter: the website for his medical practice still active online.

as dr. love and calling himself, well, a well-rounded professional.. >> he's facing a number of serious felonies here with the possibility of up to five years in prison on each of them. >> reporter: it was in early january malachi held a grand opening for this medical clinic. that's when police decided to write in an undercover cop to the clinic posing as a patient. >> the undercover officer who was part of your arrest said that you treated her. and that's what's in the charge sheet. >> the undercover officer, when sheame in, she merely had her weight taken, her blood pressure taken, and her loung are lungs listened to. other than that there was nothing out of the ordinary of something that your simple mother would do. >> reporter: police say it was when he started conducting her physical exam that they arrested him. in a press conference malachi claiming it was all a misunderstanding. >> i am deeply saedened and a little disrespected by some of the things that have come forth. >> reporter: this isn't the

busted for channeling his inner mcdreamy. matthew shied in orlando, florida. in 2011 the young man reporting for duty in an e.r. with a badge identifying him as a physician assistant, stethoscope in hand. like leonardo dicaprio in "catch me if you can," he ootszed confidence. >> do you know if they're hiring at the hospital? >> what do you want to do? >> i'm a doctor. >> reporter: unlike leonardo dicaprio's character, who got queasy in the emergency room, shied is drawn to thee action he was also charged for impersonating a police officer. shied was convicted on four felony charges, serving a year 2013. but when it comes to malachi love robinson, police are now questioning whether he too was doctor. this time in his very own clinic. >> this is the new birthing life

>> reporter: last month he proudlyproud ly showed off his medicalalenter to a local reporter. >> up on the wall so they are visible to the public -- >> reporter: that was afr he stethoscope. the sign on the door has his name and those two crucial letters. "m.d." >> the sign on the door was due to be changed. >> have you had training? >> i have. i have shadowed many doctors. >> you're saying your training comprises shadowing otherereal doctors? >> your training comprises aot things. >> but you weren't in m school. >> so i am not portraying as an m.d. i've never said that i've gone to school to be an m.d. >> reporter: how does an 18-year-old with no real medical training or much formal schooling at all open a medical office? ask his business partner, percy wells. he claims to have invested $10,000 in the clinic.

when the gavel hit and the jury decides that he was lying and the evidence mounts up to the fact that he is a liar, that's when i'm going to say to myself, yep. he's a liar. >> if you've got questions, a gree on the wall shouldn't be enough. you should go online, do your research, and make sure that the person is actually a registered physician. >> reporter: police allege he even treated the elderly. among them an 86-year-old woman. police say he treated her recently for stomach pain andharged her nearly $3,500. >> what services did you provide in exchange for that money? >> i can tell you this. accusations are merely accusations. and services you'd have to define that. whether she paid for me to just show up, that's u to her. >> you're not denying the fact that she paid you $3,5 or so? correct? >> no, i am denying that.

>> i don't appreciate yourtone. i dodot appreciate the w w you're portraying this interview to actually be. >> reporter: then a moment we didn't expect. >> i don't know where you're receiving this information from but it is inaccurate. i'm sorry, i'm going to have to cut this interview short. >> reporter: but he has said this may not cut his medical career short. saying he hopes to open another clinic in the future that is, of course, once he's done dealing with his legal woes. for "nightline," i'm matt gutman in los angeles. next, the hip-hop producer with top 40 hits and high-rolling friends, what he's doing on social media that has people really taking notice. later on the show, the war of words between the donald and

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he's got hit records and famous friends. but tonight it's what dj kaed has done on sociaiamedia that is getting him sosouch attention. abc's t.j. holmeses went to miami to roll with the so-called king of snapchat for our series "social stars." >> they don't want us to smile. >>eporter: apparently there's a list of things they don't want justin bieber doing. >> they don't want us to eat cheesecake cheesecake. they don't want us to be successful. >> repororr: exactly who's thehe in the biebs a one of the big-name celebrities emulating this man, dj khaled. >> they want you unhappy, they want to finish you, they want

what we diagnose to do is be the greatest ever. >> who's the 3? who are they? >> they is basically the hater. the enemy. i don't entertain they. >> dj khaled! >> reporter: he's the hip-hop producer behind some of this decade's biggest anthems like "all i do is win." all i do is win-win win no matter what got money on my mind >> reporter: over the past few months his fame has skyrocketed. not because of his music. but because of 10-second videos like this -- >> you ever feel stressed out? get a haircut. >> reporter: on his snapchat account. every day ka led chronicles the minutiae of his life where pictures and videos are posted to a story and disappepe after 24 hours. >> egg whites,urkey sausage -- >> repter: from morning breakfast prepared by his personal chef, to elliptical talk. >> key is never be afraid of

>> they don't want you to -- >> reporter: chill sessions with his superstar friends. at 40 years old, dj khaled has become the unlikely king of snapchat with over 6 million followers. "nightline" is along for the ride. many of khaled's snapcha stories revolve around life at his miami mansion where he lives with his fiance. >> it relaxes he when i water my plants, see the flowers grow, talk to the lion. lion order. lion. >> reporter: countless catch phrases. >> another one, just know. >> reporter: keys to succes >> right now on abc "nightline," major key, this is big. >> bless up. >> that's my everyday greating. bless up. >> special cloth alert?

rare breed. >> some people when they see it and don't know you, they think funny? is he putting on? >> definitely not an act. i want the world to know i'm super serious. and this is just dj khaled. >> repepter: ka led'd' massive snapchat audience equates to marketing gold. >> where more success comes movie deals. >> reporter: he's already cashing in. recently debuting a line of merchandise called, what else, we the best. and earlier this month he signed an exclusive radio deal with apple music. a typical day includes a stop at finger licking,g, the miami restaurant h h coowns. >> feels good to be aestaurant owner. it's part ofy dreams of being the biggest mogul. winning to me is easy. winning more is the challenge. i'm coming out, coming out. see the fan love?

i just snap something real quickish and right when i snap there was 2.27 million just off one snap real quick. somebody introroce you to fan love. fan love! >> reporter: no bodyguard. no entourage. just khaled. signing everything from sneakers to cell phones. >> thank you! >> reporter: his fans come from all walks of life. >> i'm like one of his biggest fans. >> it's my 21st and they don't want you to celebrate so you know what i'm going to do? celebrate with dj khaled. >> reporter: fan love getting out of control. >> i seen kids crying, man. crying, it change mid life. literally with tears in their eyes. it's like -- it almost made me cry. >> he estimates 50% of his current fan base are newcomers from snapchat. the other half long-time fans of his music.

2007's "we taking over." he's creatededits with kanye west and jaz-z to name a few. >> singing the national anthem -- >> reporter: he brought us inside his we the best studio for a tour. >> a lot of the jay-z records. this went platinum. >> how do you describe yourself? some people can't figure it out. >> genius. a deejay, artist, producer, executive. i make hits, i find hits, i put hits out. i'm a music mogul. >> who are the theys coming at you these days? >> it confuses me and disappoints me when somebody says, what does he do? my records are some of the biggest anthems ever. what, they magically disappear? obama walked out to my record. >> how do you like my new entrance music? >> that day i officially said, i made it. >> reporter: a major moment in

born to palestinian parents in new orleans he cherishes his arab heritage. >> you can say i'm muslim, it's a way of life. i can't say that i follow mpletely perfect of the way i'm supposed to be doing it. but i know my heart is clean and i have a clean soul and i know got got me. >> is it upsetting to see some of the talk about possibly cutting off muslims coming into this country, things like that? >> when people say that, that's just ignorant. i promote love and peace. that's all i'm about. i'm taking over as principal for the day. school is like life. you will be tested. pass it. >> reporter: he continues to spread that signature khaled wisdom far and wide. shocking hundreds of middle schoolers with a surprise visit. >> i want to let y'all know i love y'all. for real. and i appreciate y'all having me here. >> reporter: before he left, you know he had to get that perfect snap. >> make some noise!!

t.j. holmes in miami. next, guess who donald trump is sparring with now? a surprising papal intervention into american politics. e trade is all about seizing opportunity. and i'd like to... cut. so i'm gonna take this opportunity to direct. thank you, we'll call you. evening, film noir, smoke, atmosphere... bob... you're a young farmhand and e trade is your cow. milk it. e trade is all about seizing opportunity. when heartburn hits fight back fast tums smoothies starts dissolving the instant it touches your tongue and neutralizes stomach acid at the source

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finally tonight, donald trump has picked fights with fox news, john mccain, george w. mexico. and none of it seemingly has hurt his popularity. so what's going to happen now that he's in a public spat with

donald trumpmpas taken on plenty of opponents. but h latest beef might be the biggest yet. the donald versus the holy father. the pope was heading home after a trip to latin america when he was asked if an american catholic could vote for somebody like trump given his stance on immigration. he responded, "a person who thinks only about building walls wherever they may be and notot building bridges is not ristian." trump rarely one to turn the ototr cheek hit back, suggesting the mexican government was manipulating the pope. >> for a religious leader to question a person's faith is sgraceful. i'm proud to be a christian. they're using the pope as a pawn and they should be ashamed of themselves. >> reporter: he even said the pope should want him in the oval office. >> if and when the vatican is attacked by isis, i can promise you that the pope would have only wished and prayed that donald trump would have been

>> reporter: and at the cnn town down. >> when you first heard the pope had said something about you@ that you thought maybe i'm goingng to have to ask for forgiveness? >> no, no. look -- >> reporter: one of his advisers pointing out on twitter the vatican is surrounded by barriers. the cover of tomorrow's new york daily newsaking it several "antichrist." trump, it's too early too tell whether this latest feuds going to hurt or help him. south carolinans will have their say this saturday when they vote. curiouser and curiouser. thank you for watching "nightline." tune into gma first thing in the morning. as always we're online 24/7 on our "nightline" facebook page and at abcnews.com.

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